/* Duditopia · Juegos para dos · «Para el cohete» (v1 2026-11-07). Va después de /dos/dos.css. Prefijo .ch- */
.ch { --esp: #171a3a; --esp2: #232857; --pan: #3a4170; --pan-d: #262b52; --pan-l: #5a6299; --verde: #7dff9a;
      --papel: #fbf3e2; --papel-d: #e9dcc0; user-select: none; -webkit-user-select: none; }
.ch .cq-btn-sm { min-height: 44px; }
.ch-h { margin: 0; }
.ch-sw { display: inline-block; width: 14px; height: 14px; border: 2px solid var(--cq-ink); border-radius: 3px; vertical-align: -2px; }
.ch-c-r { background: #e5484d; } .ch-c-a { background: #2f6bf2; } .ch-c-y { background: #ffcf4a; }
.ch-c-v { background: #62b04a; } .ch-c-b { background: #fbfbff; } .ch-c-n { background: #8b5cf6; }
.ch-flecha { color: var(--cq-coral-d); font-weight: 800; }

/* ---------------------------------------------------------------- elegir misión */
.ch-mision { background: #fff; border: 3px solid var(--cq-ink); border-radius: var(--cq-r-lg); box-shadow: var(--cq-sh-lg); padding: 24px;
             max-width: 980px; margin: 0 auto; position: relative; overflow: hidden; }
.ch-mision::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 118px; z-index: 0;
  background: radial-gradient(circle at 12% 30%, #fff 0 1.5px, transparent 2px), radial-gradient(circle at 36% 70%, #fff 0 1px, transparent 1.5px),
              radial-gradient(circle at 63% 22%, #ffe9a6 0 1.5px, transparent 2px), radial-gradient(circle at 88% 60%, #fff 0 1px, transparent 1.5px),
              radial-gradient(circle at 76% 85%, #bfeaff 0 1px, transparent 1.5px), linear-gradient(180deg, var(--esp) 0%, var(--esp2) 100%);
  border-bottom: 3px solid var(--cq-ink); }
.ch-mision-cab { position: relative; z-index: 1; display: flex; gap: 16px; align-items: center; color: #fff; min-height: 84px; margin-bottom: 26px; }
.ch-mision-cab .cq-px, .ch-mision-cab svg { flex: none; filter: drop-shadow(0 3px 0 rgba(0, 0, 0, .35)); }
.ch-mision-cab p { margin: 4px 0 0; color: #dfe3ff; font-weight: 600; }
.ch-mision-cab h2 { color: #fff; }
.ch-niveles { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; }
.ch-nv { position: relative; display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 12px 6px 10px; min-height: 44px;
         background: var(--cq-bg); border: 3px solid var(--cq-ink); border-radius: 16px; box-shadow: 3px 3px 0 var(--cq-ink); cursor: pointer;
         font: inherit; color: var(--cq-ink); transition: transform .12s, box-shadow .12s, background .12s; }
.ch-nv:hover { transform: translate(-2px, -2px); box-shadow: 5px 5px 0 var(--cq-ink); }
.ch-nv:focus-visible { outline: 4px solid var(--cq-yellow); outline-offset: 2px; }
.ch-nv.sel { background: var(--cq-yellow); box-shadow: 4px 4px 0 var(--cq-ink), inset 0 0 0 3px #fff; }
.ch-nv[aria-disabled="true"] { background: #ece6da; color: var(--cq-muted); cursor: not-allowed; box-shadow: none; transform: none; }
.ch-nv[aria-disabled="true"] .ch-nv-mods { opacity: .45; filter: grayscale(1); }
.ch-nv-n { font: 800 30px/1 var(--cq-head); }
.ch-nv-mods { display: flex; flex-wrap: wrap; gap: 2px; justify-content: center; min-height: 18px; line-height: 0; }
.ch-nv-t { display: inline-flex; gap: 4px; align-items: center; font-size: 13.5px; font-weight: 800; }
.ch-nv-e { display: flex; gap: 1px; line-height: 0; }
.ch-nv-info { margin: 14px 0 4px; color: var(--cq-ink2); font-size: 16px; text-align: center; }
.ch-roles, .ch-local { margin-top: 18px; padding: 16px; border: 3px solid var(--cq-ink); border-radius: 16px; background: var(--cq-sky); }
.ch-roles h3, .ch-local h3 { margin: 0 0 10px; font: 800 20px/1.2 var(--cq-head); display: flex; align-items: center; gap: 8px; }
.ch-roles-f { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.ch-rol { display: flex; align-items: center; gap: 10px; padding: 8px 14px 8px 8px; border: 3px solid var(--cq-ink); border-radius: 14px;
          background: var(--j-l); box-shadow: 3px 3px 0 var(--j-d); flex: 1 1 200px; }
.ch-rol b { display: block; font: 800 18px/1.1 var(--cq-head); }
.ch-rol small { font-weight: 700; color: var(--cq-ink2); font-size: 15px; }
.ch-nota { margin: 10px 0 0; color: var(--cq-ink2); font-size: 15px; }
.ch-local { display: flex; gap: 18px; align-items: center; background: var(--cq-mint-l); }
.ch-local p { margin: 0 0 10px; color: var(--cq-ink2); }
.ch-local-b { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 !important; }
.ch-qr { flex: none; line-height: 0; padding: 6px; background: #fff; border: 3px solid var(--cq-ink); border-radius: 12px; }
.ch-qr svg { width: 136px; height: 136px; }
.ch-despega { text-align: center; margin: 20px 0 4px; }
.ch-btn-go { font-size: 21px; min-height: 58px; padding: 12px 30px; }
.ch-stats { display: flex; gap: 8px; align-items: center; justify-content: center; margin: 12px 0 0; color: var(--cq-ink2); font-weight: 700; font-size: 15px; }

/* ---------------------------------------------------------------- nave (mandos y manual) */
.ch-nave { position: relative; border: 3px solid var(--cq-ink); border-radius: 22px; box-shadow: var(--cq-sh-lg); padding: 16px; overflow: hidden;
  background:
    radial-gradient(circle at 8% 12%, #fff 0 1.5px, transparent 2px), radial-gradient(circle at 27% 6%, #ffe9a6 0 1px, transparent 1.5px),
    radial-gradient(circle at 52% 14%, #fff 0 1px, transparent 1.5px), radial-gradient(circle at 71% 9%, #bfeaff 0 1.5px, transparent 2px),
    radial-gradient(circle at 93% 18%, #fff 0 1px, transparent 1.5px), radial-gradient(circle at 18% 62%, #fff 0 1px, transparent 1.5px),
    radial-gradient(circle at 84% 72%, #ffe9a6 0 1px, transparent 1.5px), radial-gradient(circle at 46% 92%, #fff 0 1px, transparent 1.5px),
    linear-gradient(180deg, var(--esp) 0%, var(--esp2) 60%, #2c2350 100%); }
.ch-cab { display: flex; gap: 14px; align-items: center; color: #fff; margin-bottom: 14px; }
.ch-cohete { position: relative; flex: none; width: 80px; height: 140px; line-height: 0; }
.ch-cohete-c { display: block; position: relative; z-index: 1; animation: ch-tiembla .25s steps(2) infinite; }
.ch-llama { position: absolute; left: 24px; top: 108px; line-height: 0; }
.ch-nave.prisa .ch-cohete-c { animation-duration: .12s; }
.ch-nave.fin .ch-cohete-c { animation: none; }
.ch-nave.fin .ch-llama { visibility: hidden; }
@keyframes ch-tiembla { 0% { transform: translate(0, 0) rotate(-1deg); } 50% { transform: translate(1px, -2px) rotate(1deg); } }
.ch-cab-c { flex: 1; min-width: 0; display: grid; gap: 8px; }
.ch-rol-t { margin: 0; display: flex; gap: 8px; align-items: center; font-weight: 700; color: #dfe3ff; font-size: 16px; }
.ch-rol-t b { color: #fff; }
.ch-reloj { display: flex; align-items: center; gap: 12px; }
.ch-tiempo { font: 800 40px/1 ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; color: var(--verde); background: #0d1a2a; padding: 6px 14px;
             border: 3px solid var(--cq-ink); border-radius: 10px; box-shadow: inset 0 0 0 2px #24364f, 0 0 14px rgba(125, 255, 154, .25); letter-spacing: 1px; min-width: 128px; text-align: center; }
.ch-nave.prisa .ch-tiempo { color: #ffb3a3; box-shadow: inset 0 0 0 2px #4f2424, 0 0 16px rgba(255, 120, 100, .4); }
.ch-barra { flex: 1; height: 20px; border: 3px solid var(--cq-ink); border-radius: 8px; background: #0d1a2a; overflow: hidden; }
.ch-barra i { display: block; height: 100%; width: 100%; background: repeating-linear-gradient(90deg, #ffcf4a 0 10px, #ffb12e 10px 20px); transition: width .25s linear; }
.ch-nave.prisa .ch-barra i { background: repeating-linear-gradient(90deg, #ff8a6b 0 10px, #e5484d 10px 20px); }
.ch-estado { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; }
.ch-fallos { display: flex; gap: 4px; line-height: 0; }
.ch-fallo { width: 28px; height: 28px; }
.ch-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.ch-chip { position: relative; line-height: 0; padding: 3px; border-radius: 9px; border: 3px solid #0d1030; background: #2a2f5a; }
.ch-chip i { position: absolute; right: -5px; top: -5px; width: 12px; height: 12px; border: 2px solid var(--cq-ink); border-radius: 50%; background: #e5484d; }
.ch-chip.ok { background: #1f5a44; }
.ch-chip.ok i { background: var(--verde); box-shadow: 0 0 6px var(--verde); }
.ch-pista { display: flex; gap: 8px; align-items: center; margin: 14px 0 0; color: #dfe3ff; font-weight: 600; font-size: 15px; }

/* ---------------------------------------------------------------- panel de módulos */
.ch-panel { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; }
.ch-mod { position: relative; background: linear-gradient(180deg, var(--pan-l) 0, var(--pan) 10px, var(--pan) 70%, var(--pan-d) 100%);
          border: 3px solid var(--cq-ink); border-radius: 16px; padding: 12px 14px 14px; color: #fff;
          box-shadow: inset 0 0 0 2px #6870a8, 0 5px 0 #0d1030; }
.ch-mod::before, .ch-mod::after { content: ""; position: absolute; top: 8px; width: 6px; height: 6px; border-radius: 50%; background: #c3c8de; box-shadow: 0 1px 0 #1f2240; }
.ch-mod::before { left: 8px; } .ch-mod::after { right: 8px; }
.ch-mod-t { display: flex; align-items: center; gap: 8px; margin: 0 0 10px; padding: 0 12px; font: 800 18px/1.1 var(--cq-head); color: #fff; }
.ch-led { margin-left: auto; width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--cq-ink); background: #e5484d; box-shadow: 0 0 8px #e5484d; }
.ch-led.on { background: var(--verde); box-shadow: 0 0 10px var(--verde); }
.ch-mod-p { margin: 8px 0 0; color: #c9cdf0; font-size: 14px; text-align: center; }
.ch-mod.ok { box-shadow: inset 0 0 0 2px var(--verde), 0 5px 0 #0d1030; }
.ch-mod-ok { position: absolute; inset: 44px 10px 10px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
             background: rgba(23, 26, 58, .78); border-radius: 12px; font: 800 24px/1 var(--cq-head); color: var(--verde); pointer-events: none; }
.ch-mod.ch-mal { animation: ch-mal .45s steps(3); }
.ch-mod.ch-bien { animation: ch-bien .6s steps(3); }
@keyframes ch-mal { 0%, 100% { transform: none; } 25% { transform: translateX(-6px); background: #7a2430; } 60% { transform: translateX(6px); } }
@keyframes ch-bien { 50% { transform: scale(1.02); box-shadow: 0 0 0 4px var(--verde), 0 5px 0 #0d1030; } }
.ch button:focus-visible { outline: 4px solid var(--cq-yellow); outline-offset: 2px; }

/* cables */
.ch-cables { display: grid; gap: 4px; background: #262b52; border: 3px solid #0d1030; border-radius: 10px; padding: 8px; }
.ch-cable { display: flex; align-items: center; gap: 8px; min-height: 44px; padding: 2px 4px; border: 0; border-radius: 8px; background: transparent; cursor: pointer; }
.ch-cable b { flex: none; width: 24px; height: 24px; display: grid; place-items: center; font: 800 14px/1 var(--cq-head); color: var(--cq-ink); background: #c3c8de; border-radius: 6px; }
.ch-cable .cq-px, .ch-cable svg { flex: 1; min-width: 0; height: auto; }
.ch-cable:hover:not([disabled]) { background: rgba(255, 255, 255, .1); }
.ch-cable[disabled] { cursor: default; }
.ch-cable[disabled] b { background: #5a6299; }

/* botón grande */
.ch-boton-c { display: flex; align-items: center; justify-content: center; gap: 18px; flex-wrap: wrap; }
.ch-boton { position: relative; border: 0; background: transparent; padding: 0; cursor: pointer; line-height: 0; touch-action: none;
            -webkit-touch-callout: none; border-radius: 30px; transition: transform .08s; }
.ch-boton svg { width: 160px; height: 160px; }
.ch-boton-ic { position: absolute; left: 50%; top: 47%; transform: translate(-50%, -50%); filter: drop-shadow(0 2px 0 rgba(31, 34, 64, .5)); }
.ch-pulsado .ch-boton { transform: translateY(5px) scale(.97); }
.ch-tira { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 10px; background: #262b52; border: 3px solid #0d1030; border-radius: 12px; }
.ch-tira-luz { line-height: 0; }
.ch-puntos { display: flex; gap: 5px; }
.ch-puntos i { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--cq-ink); background: #3b2a3e; }
.ch-puntos i.on { background: #ffcf4a; box-shadow: 0 0 6px #ffcf4a; }

/* símbolos */
.ch-teclas { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; max-width: 280px; margin: 0 auto; }
.ch-tecla { position: relative; display: grid; place-items: center; min-height: 96px; background: linear-gradient(180deg, #fbf3e2, #e9dcc0); border: 3px solid var(--cq-ink);
            border-radius: 12px; box-shadow: 0 5px 0 #8a7f68, 0 5px 0 3px var(--cq-ink); cursor: pointer; padding: 6px; transition: transform .08s, box-shadow .08s; }
.ch-tecla:active:not([disabled]) { transform: translateY(4px); box-shadow: 0 1px 0 #8a7f68, 0 1px 0 3px var(--cq-ink); }
.ch-tecla-led { position: absolute; top: 6px; left: 50%; transform: translateX(-50%); width: 22px; height: 6px; border-radius: 3px; border: 2px solid var(--cq-ink); background: #3b2a3e; }
.ch-tecla.on .ch-tecla-led { background: var(--verde); box-shadow: 0 0 6px var(--verde); }
.ch-tecla.on { transform: translateY(3px); box-shadow: 0 2px 0 #8a7f68, 0 2px 0 3px var(--cq-ink); }

/* luces */
.ch-lamparas { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; justify-items: center; }
.ch-lampara { border: 0; background: transparent; padding: 0; cursor: pointer; line-height: 0; border-radius: 16px; }
.ch-lampara svg { width: 64px; height: 64px; }
.ch-lampara.brilla { filter: drop-shadow(0 0 10px rgba(255, 255, 255, .7)); }
.ch-luces-pie { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-top: 12px; }
.ch-rondas { display: flex; gap: 6px; }
.ch-rondas i { width: 16px; height: 16px; border-radius: 4px; border: 2px solid var(--cq-ink); background: #262b52; }
.ch-rondas i.ya { background: #ffcf4a; } .ch-rondas i.on { background: var(--verde); }

/* rueda */
.ch-rueda-c { display: grid; grid-template-columns: auto 1fr; grid-template-areas: "pant rueda" "bs bs"; gap: 12px; align-items: center; justify-items: center; }
.ch-pantalla { grid-area: pant; display: grid; grid-template-columns: repeat(3, 32px); gap: 6px; padding: 10px; background: #0d1a2a; border: 3px solid var(--cq-ink);
               border-radius: 10px; line-height: 0; box-shadow: inset 0 0 0 2px #24364f; }
.ch-rueda { grid-area: rueda; position: relative; width: 156px; height: 156px; }
.ch-rueda-b { position: absolute; left: 22px; top: 22px; border: 0; padding: 0; background: transparent; cursor: pointer; line-height: 0; border-radius: 50%; }
.ch-rueda-b svg { width: 112px; height: 112px; }
.ch-rn { position: absolute; width: 22px; height: 22px; margin: -11px 0 0 -11px; display: grid; place-items: center; font: 800 14px/1 var(--cq-head); color: #c9cdf0; }
.ch-rn.sel { color: var(--cq-ink); background: var(--cq-yellow); border-radius: 50%; }
.ch-rn-1 { left: 78px; top: 8px; } .ch-rn-2 { left: 145px; top: 43px; } .ch-rn-3 { left: 145px; top: 113px; }
.ch-rn-4 { left: 78px; top: 148px; } .ch-rn-5 { left: 11px; top: 113px; } .ch-rn-6 { left: 11px; top: 43px; }
.ch-rueda-bs { grid-area: bs; display: flex; gap: 8px; }

/* ---------------------------------------------------------------- manual (libro) */
.ch-man { color: var(--cq-ink); }
.ch-libro { background: var(--papel); border: 3px solid var(--cq-ink); border-radius: 14px; box-shadow: inset 8px 0 0 #2f6bf2, inset 11px 0 0 var(--cq-ink), 0 5px 0 #0d1030;
            padding: 14px 16px 18px 26px; }
.ch-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.ch-tab { display: inline-flex; align-items: center; gap: 6px; min-height: 48px; padding: 6px 12px 6px 8px; font: 800 15px/1 var(--cq-head); color: var(--cq-ink);
          background: var(--papel-d); border: 3px solid var(--cq-ink); border-radius: 12px; cursor: pointer; }
.ch-tab[aria-selected="true"] { background: var(--cq-yellow); box-shadow: 3px 3px 0 var(--cq-ink); }
.ch-pag h3 { display: flex; align-items: center; gap: 8px; margin: 0 0 8px; font: 800 24px/1.1 var(--cq-head); }
.ch-intro { font-size: 16.5px; line-height: 1.45; color: var(--cq-ink2); margin: 0 0 12px; }
.ch-intro-g { display: flex; gap: 12px; align-items: center; background: #fff; border: 3px solid var(--cq-ink); border-radius: 14px; padding: 10px 14px; }
.ch-cajas { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 12px; margin-bottom: 12px; }
.ch-caja { background: #fff; border: 3px solid var(--cq-ink); border-radius: 12px; padding: 10px 14px; box-shadow: 3px 3px 0 var(--papel-d); }
.ch-caja h4 { display: flex; align-items: center; gap: 6px; margin: 0 0 6px; font: 800 18px/1.1 var(--cq-head); }
.ch-caja ol { margin: 0; padding-left: 22px; display: grid; gap: 7px; font-size: 16px; line-height: 1.35; }
.ch-caja li::marker { font-weight: 800; color: var(--cq-blue-d); }
.ch-caja li .cq-px, .ch-caja li svg { vertical-align: middle; }
.ch-caja strong { color: var(--cq-ink); }
.ch-tabla-luz { display: grid; gap: 6px; background: #fff; border: 3px solid var(--cq-ink); border-radius: 12px; padding: 10px 14px; max-width: 520px; }
.ch-fila-luz { display: flex; align-items: center; gap: 10px; font-size: 16px; flex-wrap: wrap; }
.ch-fila-luz svg { flex: none; }
.ch-fila-luz .ch-puntos i { background: #e9dcc0; }
.ch-fila-luz .ch-puntos i.on { background: #ffcf4a; box-shadow: none; }
.ch-cols { display: flex; gap: 10px; flex-wrap: wrap; }
.ch-col { display: flex; flex-direction: column; align-items: center; gap: 4px; background: #fff; border: 3px solid var(--cq-ink); border-radius: 12px; padding: 6px 8px 8px; }
.ch-col > b { font: 800 18px/1 var(--cq-head); background: var(--cq-blue); color: #fff; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; border: 2px solid var(--cq-ink); }
.ch-sim { line-height: 0; }
.ch-pats { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 10px; }
.ch-pat { display: flex; align-items: center; justify-content: center; gap: 12px; background: #fff; border: 3px solid var(--cq-ink); border-radius: 12px; padding: 10px; }
.ch-leds { display: grid; grid-template-columns: repeat(3, 24px); gap: 4px; background: #0d1a2a; padding: 6px; border-radius: 8px; border: 2px solid var(--cq-ink); line-height: 0; }
.ch-num { font: 800 34px/1 var(--cq-head); color: var(--cq-blue-d); }
.ch-nave-man .ch-man { margin-top: 2px; }
.ch-man-modal { max-width: 920px; width: calc(100vw - 32px); max-height: calc(100vh - 40px); overflow: auto; text-align: left; }
.ch-man-suelto { max-width: 1000px; margin: 0 auto; }
.ch-print-pie { display: none; }

/* ---------------------------------------------------------------- reglas y final */
.ch-reglas .ch-regla { display: flex; gap: 14px; align-items: center; margin: 0 0 12px; }
.ch-reglas .ch-regla .cq-px { flex: none; background: #232857; border: 3px solid var(--cq-ink); border-radius: 12px; padding: 4px; line-height: 0; }
.ch-fin { display: flex; flex-direction: column; align-items: center; gap: 8px; margin: 8px 0 4px; }
.ch-fin-arte { line-height: 0; background: linear-gradient(180deg, #171a3a, #2c2350); border: 3px solid var(--cq-ink); border-radius: 14px; padding: 8px 12px; }
.ch-fin-est { display: flex; gap: 4px; line-height: 0; }
.ch-fin-datos { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; font-weight: 700; color: var(--cq-ink2); }
.ch-fin-datos span { display: inline-flex; align-items: center; gap: 4px; }
.ch-fin-top { font-weight: 800; color: var(--cq-mint-d); }

/* ---------------------------------------------------------------- móvil */
@media (max-width: 760px) {
  .ch-mision { padding: 16px; }
  .ch-mision::before { height: 104px; }
  .ch-mision-cab { gap: 10px; margin-bottom: 22px; }
  .ch-mision-cab p { font-size: 14px; }
  .ch-niveles { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
  .ch-local { flex-direction: column; align-items: flex-start; }
  .ch-nave { padding: 10px; border-radius: 16px; }
  .ch-cab { gap: 8px; align-items: flex-start; }
  .ch-cohete { width: 48px; height: 92px; }
  .ch-cohete svg { width: 48px; height: 67px; }
  .ch-llama { left: 14px; top: 64px; }
  .ch-llama svg { width: 20px; height: 20px; }
  .ch-tiempo { font-size: 30px; min-width: 100px; padding: 4px 8px; }
  .ch-rol-t { font-size: 14px; }
  .ch-panel { grid-template-columns: 1fr; gap: 12px; }
  .ch-mod { padding: 10px; }
  .ch-boton svg { width: 136px; height: 136px; }
  .ch-lampara svg { width: 56px; height: 56px; }
  .ch-libro { padding: 10px 10px 14px 20px; box-shadow: inset 6px 0 0 #2f6bf2, inset 8px 0 0 var(--cq-ink), 0 4px 0 #0d1030; }
  .ch-tab span { display: none; }
  .ch-tab { padding: 6px 8px; }
  .ch-pag h3 { font-size: 21px; }
  .ch-cajas { grid-template-columns: 1fr; }
  .ch-sim svg { width: 34px; height: 34px; }
  .ch-cols { gap: 6px; }
  .ch-col { padding: 4px 4px 6px; }
  .ch-reglas .ch-regla { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 420px) {
  .ch-tiempo { font-size: 26px; min-width: 88px; }
  .ch-sim svg { width: 30px; height: 30px; }
}
@media (prefers-reduced-motion: reduce) {
  .ch-cohete-c, .ch-mod.ch-mal, .ch-mod.ch-bien { animation: none !important; }
  .ch-barra i, .ch-nv, .ch-tecla, .ch-boton { transition: none; }
}

/* ---------------------------------------------------------------- imprimir el manual */
@media print {
  .cq-top, .dos-cab-r, .dos-volver, .ch-tabs, .ch-intro-g { display: none !important; }
  body { background: #fff; }
  .dos-app { padding: 0; max-width: none; }
  .ch-pag { display: block !important; break-inside: avoid-page; margin-bottom: 16px; }
  .ch-pag[hidden] { display: block !important; }
  .ch-libro { box-shadow: none; border-width: 2px; padding: 8px; }
  .ch-caja, .ch-col, .ch-pat, .ch-tabla-luz { box-shadow: none; break-inside: avoid; }
  .ch-print-pie { display: block; text-align: center; font-size: 12px; color: #555; }
  * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}